Description You can use the mode of fan in the summer, and use heat in the winter. Multi-Function- Our 12V car heater fan can quickly clean the frost, fog, and mist on your car, windshield, side, provide a clear view for your driving and let you enjoy the warmer driving in this cold winter. Safe and Durable- Our car Windshield defroster heater adopts cigarette lighter plug design, built-in fuse, automatic power-off protection, withstand voltage, and safer to use. The automatic cooling and heating fan is made of heat-resistant ABS material, which is strong and resistant to aging, ensuring maximum strength and durability. Easy to install - Simply remove the car fan from the box, insert it into a 12V car cigarette holder, and switch between hot and cold. Insert the universal shaft for adjustment, and the base can be installed with our double-sided adhesive, making it convenient and comfortable to use.